BridgeBio Pharma Announces Publication of Positive Results from Phase 3 ATTRibute-CM Study of Acoramidis for Patients with Transthyretin Amyloid Cardiomyopathy (ATTR-CM) in the New England Journal of Medicine - Seite 2

The ATTRibute-CM study demonstrated a significant treatment effect of acoramidis in the primary analysis that compared, in a hierarchical manner, all-cause mortality (ACM), cardiovascular-related hospitalization (CVH), N-terminal prohormone of brain natriuretic peptide (NT-proBNP), and 6-minute walk distance (6MWD). Findings presented in the NEJM support acoramidis as an effective and safe treatment option for patients with ATTR-CM and reinforce the hypothesis that greater stabilization of TTR may be associated with improved clinical outcomes. Additional findings in the publication include:

• The majority of comparisons in the primary hierarchical analysis (58% in the associated Win Ratio) were determined by the first two components of ACM and CVH; statistical significance was also achieved on a F-S test with those two cardiovascular outcomes parameters alone
• Statistically significant treatment benefit was observed for change from baseline in 6MWD, Kansas City Cardiomyopathy Questionnaire (KCCQ), and serum TTR
• The observed 30-month survival rate of 74.3% in the placebo arm of ATTRibute-CM is greater than the observed 30-month survival rate of 70.5% in the combined tafamidis treatment arms of ATTR-ACT, the only previously reported cardiovascular outcomes study in ATTR-CM
  • As a contemporary benchmark for placing the survival rate of 80.7% in the treatment arm of ATTRibute-CM into context, recent data from the U.S. Social Security Administration estimated 30-month survival at 85% in an age-matched cohort of the general population
  • Similarly, the annualized CVH rate in the treatment arm of ATTRibute-CM of 0.29 can be viewed in the context of data on the annual overall hospitalization rate of 0.26 in the U.S. Medicare population.
• Serum TTR was promptly and consistently elevated throughout the study in patients receiving acoramidis as a result of near-complete stabilization of the protein
• Acoramidis was well-tolerated, with no safety signals of potential clinical concern identified
  

“These results add to the totality of the available data supporting the concept that the greater the degree of stabilization of tetrameric TTR, the greater the observed clinical benefit,” said Jonathan Fox, M.D., Ph.D., president and chief medical officer of BridgeBio Cardiorenal. “With the submission of our NDA to register acoramidis with the FDA, and with additional regional and national regulatory submissions planned, we look forward to making acoramidis available to patients who might benefit from its demonstrated efficacy and safety.”